Airbag control unit with part number 77960-SNA-H010-M1

What does the airbag control unit 77960-SNA-H010-M1 do?

The 77960-SNA-H010-M1 control unit is the central control unit of the airbag restraint system (SRS) in Honda. It receives the signals from the crash sensors and, in the event of a crash, selects within milliseconds which airbags and seatbelt pretensioners are triggered. It monitors the system constantly while doing so.

It reports a fault via the airbag warning light in the instrument cluster. After an accident it stores crash data and locks itself.

Why does the control unit 77960-SNA-H010-M1 fail?

The most common cause is crash data from an earlier accident, even if no airbag was triggered. For the 77960-SNA-H010-M1, Airbag24 erases this data as part of the repair; a normal diagnostic tool cannot do this. Other causes include aged components, moisture and corrosion on contacts, and voltage spikes.

Aged components and cold solder joints develop over time, and moisture causes contacts to corrode.

Brief voltage spikes, for example from a weak battery or a jump start, can also damage the electronics.

How can you tell that the 77960-SNA-H010-M1 is defective?

Above all, the airbag warning light shows a defect in the 77960-SNA-H010-M1 by lighting up constantly or intermittently. Other signs include a fault message in the instrument cluster, no connection between the diagnostic tool and the control unit, and a fault memory that cannot be cleared.

In an emergency, airbags and seatbelt pretensioners may fail to trigger because of a faulty control unit.

Please take these messages seriously and have them checked.

Which vehicles is the 77960-SNA-H010-M1 fitted in?

A look at the overview shows whether your vehicle is among them. The 77960-SNA-H010-M1 control unit is fitted in these vehicles: Honda Civic 8th generation (2005-2011).

The overview below lists the vehicles that belong to this unit.

• Honda Civic 8th generation (2005-2011)

Comparing the part number with the label on the removed unit confirms that you have the right unit, nothing more. Reading out the fault memory before removal, on the other hand, shows whether the control unit itself is defective or whether plugs or cables are the cause.

For the same vehicles, we also repair control units with the part numbers 77960-SMG-G014-M1, 77960-SMG-G021-M1, 77960-SMG-G120-M1, 77960-SNA-L220-M1, 77960-SNA-L230-M1, 77960-SNA-M410-M1.

How does the repair of the 77960-SNA-H010-M1 work?

The process starts with reading out the fault memory, with the log enclosed. Only then do you disconnect the battery and remove the control unit 77960-SNA-H010-M1. Next, create the repair order online and send the well-packed unit. At Airbag24 processing usually takes 3–4 working days.

On the test bench, Airbag24 examines the unit. Defective components are replaced, stored crash data is erased and a function test is carried out. Afterwards your own unit is returned to you.

Diagnosis first, then removal: this order must be observed.

Our repairs come with 2 years' statutory liability for defects. The repaired control unit comes back with all vehicle data and is ready for use as soon as it is refitted — no coding or programming is required.

How does the control unit 77960-SNA-H010-M1 get to Airbag24?

You send the control unit 77960-SNA-H010-M1 as a parcel, or you book UPS collection for an extra charge. Airbag24 then sends it back by UPS.

Shockproof packaging and the printed repair order belong together in the parcel.